Dirk Paessler

Die COVID-Inzidenz-Abschätzung aus den Hospitalisierungsdaten der @DGINA_eV Notaufnahme Ampel zeigt sehr ähnliche Werte (schwankend um 200) wie es @rv_enigma aus anderen Daten abschätzt. Damit liegen wir z.Zt. besser als in beiden Vorgängerjahren.

Hyperbaric oxygen therapy for long COVID: a prospective registry - Scientific Reports Scientific Reports - Hyperbaric oxygen therapy for long COVID: a prospective registry

In the Netherlands, 232 patients with long COVID received hyperbaric oxygen therapy.

After 3 months, 56–63% reported better mental or physical health, but 13–19% worsened.

Cognitive symptoms showed the most improvement.

www.nature.com/articles/s41...

Long term outcomes of hyperbaric oxygen therapy in post covid condition: longitudinal follow-up of a randomized controlled trial - Scientific Reports Scientific Reports - Long term outcomes of hyperbaric oxygen therapy in post covid condition: longitudinal follow-up of a randomized controlled trial

Ja, wurde zB hier gemacht www.nature.com/articles/s41...

Danke fürs teilen. Ich lese das gerade *in* einer HBOT Kammer. 😀

• First DAC facility with a AAA BeZero rating
• $50M U.S. DOE support for Project Cypress
• Gen3 tech: 2x capacity, 50% less energy

This is what progress looks like, and this is why we back Climeworks.

Read the full Portfolio Spotlight on their work: www.carbon-drawdown.de/blog/2025-8-...

From a Swiss lab in 2009 to megaton-scale plans by 2030 and a gigaton-scale vision by 2050, Climeworks isn’t just removing CO₂; they’re helping companies future-proof their net zero strategies with high-quality, science-backed solutions.

In May, @climeworks.bsky.social launched 𝘔𝘢𝘮𝘮𝘰𝘵𝘩, the world’s largest DAC+storage plant. But this milestone is just one part of a bigger story.

Or, one could use glacial dust, the very fine rock flour created by glaciers over thousands of years (Rock Flour Company mines this stuff in Greenland).

Next week we’ll look at the transport of the rock.

As a rule of thumb: The smaller the better because this increases the surface area for the weathering reactions and makes them faster. But there is a tradeoff between the grain size and the necessary energy which increases exponentially the smaller the grains are, so we need to optimize this.

It all starts with the rock (or, sometimes, with industrial residues). Suitable rocks like basalt, lime or dunite are mined and get crushed down to grain sizes of a few hundred microns.

You can explore, request access, or contribute at: data.cascadeclimate.org/

And if you’re working on ERW, let’s talk.

The rocks are weathering. Now the science is catching up.

But if we want ERW to become a meaningful climate solution, we need to stop guarding data like it’s gold. The real value lies in collaborative progress.

This kind of radical transparency isn’t easy. It takes:

1. Trust between stakeholders
2. Compliance with evolving privacy standards
3. Shared schema and infrastructure
4. And a 𝘸𝘪𝘭𝘭𝘪𝘯𝘨𝘯𝘦𝘴𝘴 𝘵𝘰 𝘴𝘩𝘢𝘳𝘦 𝘦𝘢𝘳𝘭𝘺 even before everything is “perfect”

And the data quarry is just getting started.

- 26 datasets are now in the pipeline.
- Field data partners across 4 continents.
- Commercial, scientific, and agronomic impact data in one place.

- InPlanet: The first commercial dataset ever submitted drawn from a verified ERW crediting process.
- Flux: Insights into ERW’s agronomic co-benefits.
- Carbon Drawdown Initiative (yes, us!): Shared our XXL lysimeter experiment data, now cleaned, documented and accessible to the research community.

And we need to share it — across teams, continents, and company boundaries. That’s what the Data Quarry enables. It’s what the field has been waiting for.

Here are some of the first contributors (Flux and Inplanet also happen to be portfolio companies!):

This is a huge step for the entire CDR community.

Why? Because ERW holds enormous promise.

But to get over the hump of uncertainty (in cost, durability, agronomic impact, and MRV), we need more and better data.

I’m thrilled to share that the ERW Data Quarry is live.

• It’s a secure, permissioned platform built by Cascade
• Designed for ERW project developers, scientists, and buyers
• Already seeded with hard data from real projects
• And built to accelerate learning in the ERW field

Only shared data, and lots of it, will help Enhanced Rock Weathering (ERW) become a truly scalable, science-backed carbon removal solution.

From the beginning we intended to share all our data from our ERW experiments! Now there is a dedicated website for this, the Cascade Data Quarry! This will become a cornucopia for EW scientists!

Encouragement is a form of climate action. As is hope.

Let’s reward the people who try.
Let’s push solutions forward, not pick them apart until nothing moves.

Yes, critical thinking matters. But save the sharpest critique for what’s harmful, dishonest, or lazy (plenty!) — not for the 80%-there experiments done in good faith.

Progress doesn’t come from perfection. It comes from movement. If someone shows up with a partial solution and genuine effort, the right response isn’t to tear it apart. Rather, it’s to say: “Thanks for working on this. Please, don’t stop to improve it further.”

We need more people trying things. More people experimenting, building, testing, sharing. Not fewer. These efforts will always look imperfect in the beginning.

Here’s the thing: You don’t have to break the world record on the first attempt, but you do need to jump.

Honestly, that’s frustrating. We’re in a climate crisis, and we do not have all the right answers yet! Concepts that later turn out to be successful usually look crazy or at least incomplete in the beginning. We need new ideas, new solutions!

I see it often: Someone shares a hopeful climate idea: a new solution, experiment, or prototype. And what’s among the first reactions? Criticism, not of the science or the intent, but because it’s not perfect… yet. Oh, come on!

No solution is already perfect during development. All great solutions initially started as somewhat flawed solutions, then improved later. But you need to start somewhere!

The plants on the first approx. 450 pots of our new 2025/2026 Carbon Drawdown Initiative greenhouse experiment for enhanced weathering have had a good start. Even more pots are coming soon... This week we have taken and measured the first set of leachate water samples.
#projectcarbdown

We’re sharing the full results in our latest Carbon Drawdown Initiative blog. If you’re working on EW-CDR, I think you’ll find it worth a read:

www.carbon-drawdown.de/blog/2025-7-...

If this holds up across more soils, it could change everything for us. We would be looking at faster validation, lower MRV costs, fewer wasted field trials, and more confident scaling.

All from a test you could run with materials that fit in a backpack.